.container {
    height: 100vh;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: repeat(6, 1fr);

    

    .box {
        background-color: rgb(249, 249, 249);
        grid-row: 2/6;
        grid-column: 2/6;
        border: 5px solid black;
    }
}